worm wheel

1. 1.

   gear with the thread of a worm

   Broadergear

   Part ofworm gear

Questions about worm wheel

What does worm wheel mean?

worm wheel means "gear with the thread of a worm".

Is worm wheel a common word?

worm wheel is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.